Category Archives: Concrete

The U.S. has 4.1 million miles of roads (1.9 million paved, 2.2 million gravel). About 3 million miles of roads have less than 2,000 vehicles a day, less than 15% of all traffic. The paved portion of these low-volume roads … Continue reading →

A book review by Alice Friedemann of: Swift, Earl. 2012. The Big Roads: The Untold Story of the Engineers, Visionaries, and Trailblazers Who Created the American Superhighways. Related articles $46 Trillion Infrastructure in USA, $6 Trillion is Transportation Expressways & … Continue reading →

Sand Primer: Without sand, there would be no concrete, ceramics, computer chips, glass, plastics, abrasives, paint and so on We can’t use desert sand because it’s too round, polished by the wind, and doesn’t stick together. You need rough edges, … Continue reading →

Here’s more information from Courland’s book “Concrete Planet” and other information I found on the web since I wrote Enough energy after Peak Oil to rebuild and repair concrete infrastructure? It appears there’s very little testing of projects later on … Continue reading →